Apple keyboard lid won't open due to battery leakage

If you are like me, you had a wireless Apple keyboard where there was AA batteries leakage and the threaded lid won’t open. Something definitely to dread, especially when the replacement costs isn’t cheap.
I hadn’t used my keyboard for a while until I found this. I saw white grains around my desk and realised that there had been a battery leakage (some white corrosion is outside the threaded lid area).
The corrosion joined the parts together strongly in a chemical fusion.
I immediately tried to open it but no methods seemed to work, I used a coin, pliers, a screw driver with no avail.
I followed someone’s tip online and removed the bluetooth module cover removes by squeezing the sides of the plastic tube together, which allows a jeweller’s screwdriver to get under the rear edge and gently lever it up. I did this but just couldn’t make it through to the battery.

Steps to try free your Apple keyboard lid

I am writing this article to show you some photos of what I experienced, and some suggested steps to try. This includes:

If you’re wondering, I couldn’t successfully fix it. I could see the battery within the bluetooth gap, but couldn’t break through it and adding vinegar didn’t work. Hopefully you might have some luck if you have this issue and you’re reading this!